MAKEUP PRODUCTS (NON-PERMANENT)

While most chemicals in beauty products and cosmetics pose slight or no danger, dozens have been linked with substantial medical conditions, such as cancer, and neurological harm. Cosmetic chemicals gain entry to a person's body through internal use, the skin, and inhalation, and pose similar problems as food chemicals, per this site.

Chemicals linked to cancer are found in food, water, and lots of other common goods. But, no classification of consumer goods is susceptible to less government oversight than cosmetics, including YSL Lip Liner. While many of the chemicals and contaminants in cosmetics and personal care products most likely pose little risk, exposure to some has been linked to worrying health conditions, including cancer.